A fuel tank having a low height

Abstract

The utility model relates to fuel tank equipment technical field provides a kind of low height fuel tank, including oil tank body, fuel pump, ROV valve, breather valve, oil tank body is closed cavity structure, oil tank body central part is recessed to form fuel collection cavity, both sides are gradually lifted to form symmetrical flange structure outward, recessed place is connected with fuel pump for centralized collection of fuel, to reduce the overall height of oil tank and improve fuel suction efficiency fuel pump, ROV valve and breather valve are installed on oil tank body, and its pipe orifice direction is consistent, is centrally arranged in the same side of oil tank body, to avoid the cross stacking of valve and pipeline in vertical direction, reduce the space occupation on the upper part of oil tank, realize the flat structure layout of oil tank.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank equipment technology, and specifically to a fuel tank with a relatively low height. Background Technology

[0002] As a crucial component of a vehicle's fuel system, the fuel tank's primary function is to store and supply fuel to the engine. Traditional fuel tanks are mostly flat-bottomed or slightly recessed, resulting in insufficient vertical space utilization and a relatively high overall height. When a vehicle's chassis has low ground clearance or limited space, it is difficult to place the fuel tank or it needs to be raised for installation, making it difficult to achieve a flattened design at the top of the fuel tank and hindering the optimal utilization of chassis space. Therefore, we propose a fuel tank with a lower height. Utility Model Content

[0003] In view of the shortcomings of the prior art, the present invention provides a fuel tank with a lower profile to solve the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A low-profile fuel tank includes a tank body, a fuel pump, an ROV valve, and a vent valve. The tank body has a closed cavity structure with a central recess forming a fuel collection chamber. The two sides gradually rise outward to form symmetrical flange structures. The recessed area is connected to the fuel pump for centralized fuel collection, thereby reducing the overall height of the tank and improving fuel absorption efficiency. The fuel pump, ROV valve, and vent valve are all mounted on the tank body with their ports facing the same direction and are centrally located on the same side of the tank body to avoid vertical stacking of valves and pipes, reduce the space occupied in the upper part of the tank, and achieve a flattened structural layout of the tank.

[0006] Preferably, the mounting platform is located outside the flanges on both sides of the fuel tank body and is connected to the fuel tank body by welding, riveting or embedding to form an integral unit for installation in close contact with the vehicle chassis, thereby achieving a low-profile arrangement of the fuel tank.

[0007] Preferably, the bottom of the fuel collection chamber has an arc-shaped or shallow bowl-shaped structure to reduce residual fuel retention and improve fuel utilization.

[0008] Preferably, the ROV valve is installed at the upper end of the flange of the fuel tank body to balance the air pressure inside and outside the fuel tank during refueling and operation.

[0009] The vent valve is located at the upper end of the other side of the fuel tank body. When the vehicle is tilted or vibrating, the vent valve is used to prevent fuel leakage and ensure smooth fuel-air flow.

[0010] Preferably, the refueling hose is installed on the side wall of the fuel tank body, with the hose opening extending outwards to facilitate connection with the vehicle's refueling port.

[0011] The inlet of the refueling pipe is equipped with an anti-backflow device to prevent fuel from overflowing during refueling or vehicle vibration.

[0012] Preferably, the mounting platform is a metal-reinforced structure, and its lower surface is designed according to the vehicle chassis structure to achieve a tight fit installation under different chassis structures.

[0013] This invention provides a fuel tank with a lower profile. It has the following advantages:

[0014] 1. By designing the fuel tank body as a symmetrical structure with a concave center and raised sides, the fuel is concentrated and collected in the concave part, while reducing the overall height of the fuel tank, so that the fuel tank can be arranged close to the vehicle chassis, lowering the vehicle's center of gravity and improving the vehicle's stability and handling performance.

[0015] 2. The ports of the fuel pump, ROV valve and vent valve are aligned and the interfaces are concentrated on the same side of the fuel tank body. This avoids the stacking and crossing of valves and pipes in the vertical direction, making the upper surface of the fuel tank flat and effectively compressing the upper space of the fuel tank, further realizing the flattening and lowering of the fuel tank. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram from another perspective of the present invention;

[0018] Figure 3 This is a three-dimensional schematic diagram of the present invention.

[0019] In the diagram: 1. Fuel tank body; 11. Fuel pump; 12. Fuel delivery pipe; 2. ROV valve; 3. Vent valve; 4. Mounting platform; 5. Refueling pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of this utility model, not all of it. Based on this utility model, all other inventions obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] See attached document Figure 1-3 A fuel tank with a relatively low profile includes a fuel tank body 1, a fuel pump 11, a fuel delivery pipe 12, an ROV valve 2, a vent valve 3, a mounting platform 4, and a refueling pipe 5.

[0022] The fuel tank body 1 is a closed cavity structure, preferably integrally molded from metal or engineering plastic. The center of the fuel tank body 1 is concave, and the two sides gradually rise outward to form a symmetrical flange structure. The concave part constitutes a fuel collection chamber for centralized storage of fuel and facilitates fuel suction by the fuel pump 11. The bottom of this concave area has a slightly arc-shaped or shallow bowl-shaped structure to reduce residual fuel retention and improve fuel utilization.

[0023] The fuel tank body 1 is a closed cavity structure, preferably integrally injection molded from metal or high-strength engineering plastic materials, possessing high impact resistance and corrosion resistance. The overall height of the fuel tank body 1 is significantly reduced compared to conventional fuel tanks, with a recessed structure at its center and symmetrical flanges gradually rising outwards on both sides. The recessed area constitutes a fuel collection chamber for centralized fuel storage and facilitates fuel pump 11 suction. The bottom of the recess has a shallow bowl-shaped or arc-shaped transition structure, which avoids fuel residue and improves fuel utilization.

[0024] The fuel pump 11 is installed in the recessed bottom of the fuel tank body 1 and is fixedly connected to the inner wall of the fuel tank via a sealing seat. The suction port of the fuel pump 11 is positioned facing the lowest point of the fuel collection chamber to ensure stable fuel extraction even when the fuel level is low. The outlet of the fuel pump 11 is connected to the fuel supply pipe 12, which runs along the inside of the fuel tank body 1 to the side outlet of the fuel tank for supplying fuel to the engine or other fuel systems.

[0025] The ROV valve 2 is installed on the upper part of the flange of the fuel tank body 1. It is used to balance the air pressure inside the fuel tank with the outside air during refueling and operation, and to prevent negative pressure from forming inside the fuel tank. The ROV valve 2 can be set in conjunction with the vent valve 3. The vent valve 3 is arranged at the upper end of the other side of the fuel tank body 1. When the vehicle is tilted or vibrating, the vent valve 3 can effectively block fuel leakage, ensuring smooth fuel flow and safety.

[0026] The refueling pipe 5 is installed on the upper surface or side wall of the fuel tank body 1. It is preferably fixed by threaded connection or welding sealing. The pipe opening of the refueling pipe 5 extends outward to facilitate connection with the external refueling port of the vehicle. The inlet of the refueling pipe 5 can be equipped with an anti-backflow device to prevent fuel from overflowing during refueling or violent vibration.

[0027] Mounting platform 4 is located on the outside of the flanges on both sides of the fuel tank body 1. Mounting platform 4 is a metal reinforced structure with mounting holes for bolt-fixed connection to the vehicle chassis. Mounting platform 4 is connected to fuel tank body 1 by welding, riveting, or embedding to form an integral structure, thereby improving the overall rigidity and shock resistance of the fuel tank. The lower surface of mounting platform 4 is designed as a flat, inclined, or arc-shaped transition surface according to the vehicle chassis structure, so that the fuel tank can be fitted and installed on different chassis structures, facilitating rapid assembly.

[0028] Among them, the ports of the fuel pump 11, ROV valve 2, and vent valve 3 are aligned. This structural arrangement not only facilitates the centralized connection and assembly of oil and gas pipelines, but also avoids pipelines crossing and overlapping above the fuel tank, thereby reducing the space occupied by the upper structure of the fuel tank, realizing the flattened design of the fuel tank, further reducing the overall height of the fuel tank, improving the space matching with the vehicle chassis, and achieving the effect of low-profile installation.

[0029] In practical applications, the fuel tank can be installed in the central or side areas of the vehicle chassis. The low-profile design of the fuel tank body 1 lowers the center of gravity of the entire vehicle chassis, thereby improving vehicle stability. The side flanges of the fuel tank body 1 not only provide mounting support but also act as protective structures to withstand impacts from below.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The above description is only used to illustrate the technical solutions of this utility model, and is not intended to limit it. Although the utility model has been described in detail with reference to the foregoing, those skilled in the art should understand that modifications can still be made to the foregoing technical solutions, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the various technical solutions of this utility model.

Claims

1. A fuel tank with a low profile, comprising a fuel tank body (1), a fuel pump (11), an ROV valve (2), and a vent valve (3), wherein the fuel tank body (1) is a closed cavity structure, characterized in that: The center of the fuel tank body (1) is recessed to form a fuel collection chamber, and the two sides gradually rise outward to form a symmetrical flange structure. The recessed part is connected to the fuel pump (11) for centralized collection of fuel, so as to reduce the overall height of the fuel tank and improve the fuel absorption efficiency. The fuel pump (11), ROV valve (2) and vent valve (3) are installed together on the fuel tank body (1) with their pipe openings facing the same direction. They are concentrated on the same side of the fuel tank body (1) to avoid the vertical stacking of valves and pipes, reduce the space occupied in the upper part of the fuel tank, and realize the flat structure layout of the fuel tank.

2. A fuel tank with a low profile as described in claim 1, characterized in that: The mounting platform (4) is set on the outside of the flanges on both sides of the fuel tank body (1) and is connected to the fuel tank body (1) by welding, riveting or embedding to form a whole, for fitting and installing with the vehicle chassis, thereby realizing the low-profile arrangement of the fuel tank.

3. A fuel tank with a low profile as described in claim 1, characterized in that: The bottom of the fuel collection chamber is an arc-shaped or shallow bowl-shaped structure, which is used to reduce residual fuel retention and improve fuel utilization.

4. A fuel tank with a low profile as described in claim 1, characterized in that: The ROV valve (2) is installed on the upper end of the flange of the oil tank body (1) and is used to balance the air pressure inside and outside the oil tank during refueling and operation. The vent valve (3) is located at the upper end of the other side of the fuel tank body (1). When the vehicle is tilted or vibrating, the vent valve (3) is used to prevent fuel leakage and ensure smooth flow of fuel gas.

5. A fuel tank with a low profile as described in claim 1, characterized in that: The refueling pipe (5) is installed on the side wall of the fuel tank body (1), and the pipe opening of the refueling pipe (5) extends outward to facilitate connection with the vehicle's refueling port; The inlet of the refueling pipe (5) is equipped with an anti-backflow device to prevent fuel from overflowing during refueling or vehicle vibration.

6. A fuel tank with a low profile as described in claim 1, characterized in that: The mounting platform (4) is a metal reinforced structure, and its lower surface is designed according to the vehicle chassis structure to achieve tight fit installation under different chassis structures.

Images